Gwaji da Tafiya na Muhimmiyar Kikin Kirkiro da Dukkan Iliminta a Fafutukan GIS

Na'amni Oliver, da tarihin shekaru 8 a cikin yanayin fadada current transformer. Wannan suna da mu yadda aiki da kuma bayarwa game da kan
1 Fadada Current Transformers

Ba da tarihin shekaru 8 a cikin yanayin fadada current transformer, ina jin da take da wani abu game da fadada masu. Fadada current transformers ta shafi tsarin fadada na biyu, fadada na uku, da kuma fadada na hudu.

Fadada na biyu yana iya zama da fuskantar gida (idanna don haka) da kuma fuskantar mai shirya, kuma yana aiki baya shekara. Fadada na uku yana iya zama da nufin gwiwar transformer, kula da karfi, daga da kuma duk abubuwan fadada na biyu. Akwai lokacin da yake da iya zama da kasance da transformer da ba da shi karkashin maimakon mai amfani, yana aiki baya shekaru 5 zuwa 10. Fadada na hudu yana nufin kawo da kuma kammala da duk abubuwan fadada na biyu da na uku, yana aiki baya shekaru 15 zuwa 20.

(1) Tushen Fadada Na Biyu

Fadada na biyu ta shafi tsarin fadada na biyu: ba da fuskantar gida da kuma ba da fuskantar gida.

• Fadada na biyu ba da fuskantar gida: Amfani da likitoci ko kafin kudin da aka ciwo da kula da porcelain bushing. Idan yana da cuta, za a iya amfani da alcohol ko gasoline. Bambanta idan porcelain bushing yana da cuts, darajar, ko kuma kula da enamel. Bambanta idan duk boltun yana da karamin kusa; idan yana, koye su daga kusa. Bambanta idan mai shirya yana da kyau; ba zai iya zama da rarrabe da takaitaccen minimum. Bambanta idan gida yana da kwalla; idan yana, kula da kasa da koye paint. Idan V - type oil level glass tube yana da cuts ko kuma yana da karamin kusa, koye shi karkashin mallaki. Bambanta idan akwai karamin kusa a duk abubuwan. Kuma bambanta idan zangon da breather da kuma fuskantar gida yana da kyau da kuma yana da karamin kusa, da kuma tabbata cewa wiring yana da kyau da kuma yana da karamin kusa.

• Fadada na biyu da fuskantar gida yana iya zama da wani abu a wannan halin:

• Mai shirya yana da rarrabe da takaitaccen minimum, da kuma yana da iya zama da fuskantar mai shirya.

• Oil gauge glass tube yana da cuts da kuma yana da karamin kusa.

• Waterproof plug sealing ring yana da cuts da kuma yana da karamin kusa, da kuma yana da iya zama da koye shi karkashin mallaki.

• Upper cover sealing ring of the oil conservator yana da cuts da kuma yana da iya zama da koye shi karkashin mallaki.

• Mai shirya yana da karamin kusa a laboratory test da kuma yana da iya zama da koye shi karkashin mallaki.

(2) Tushen Fadada Na Uku

Yana fiye da a yi fadada na uku a cikin gida, da kuma gida yana da kyau. Idan fadada yana da lokaci mai yawa da ba zai iya kammala a ranar, transformer body yana da iya zama da koye shi karkashin mallaki. Kuma equipment da ya kamata zama da iya dakatar da koyarwar transformer. Idan an samu shi, kula da sample mai shirya daga lower drain plug don testing.

(3) Tushen Fadada Na Hudu

Fadada na hudu yana nufin fadada mai tsabta. Idan unituka ba zai iya zama da shi, sanya wani takammiyar maintenance team. Fadada na hudu ta shafi duk abubuwan fadada na biyu da na uku. Equipment yana da iya zama da koye shi karkashin mallaki, da kuma koye duk abubuwan da ba da kyau don kammala performance. Idan yana da kyau, za a yi kiyaye da koye shi karkashin mallaki don kammala mechanical performance.

2 Tabbaccewa da Diagnosis of Current Transformers

Idan current transformer yana da karamin kusa, tabbata cewa abin da yake da kuma wuraren da yake don karamin kusan. Daga duk abubuwan state parameters, kaɗa info mai sauƙi don diagnosis. Abin da yake da karamin kusan da karamin kusa yana nufin "fault symptom". Diagnosis, wani abu na state recognition, yana bayyana fault type da kuma wuraren da yake don waɗannan symptoms.

Diagnosis of current transformer yana da tsarin four steps:

• Preventive tests: Tabbas Regulations for Preventive Tests of Power Equipment don measure winding/end - shield insulation resistance, dielectric loss factor, capacitance, da kuma conduct oil - dissolved gas chromatography. Analyzing results reveals issues like water ingress, moisture, or poor manufacturing.

• Partial discharge measurement: Routine methods miss discharge defects, but discharge tests clearly identify defect types with good results.

• Online monitoring & infrared thermometry: Combined with internal structure and operating status, it effectively checks for loose joints.

• Visual inspection: A running transformer’s “buzzing” often stems from a secondary circuit open/poor terminal contact (with spark discharge). Open secondary circuits cause terminal overvoltage, risking insulation breakdown and harm—so they’re strictly prohibited! If the “buzz” comes from loose iron - core screws, the sound grows with load, overheating the transformer, aging insulation, and causing grounding/breakdown. Surface dirt/dust - caused sounds turn to “cracking” discharges on rainy/foggy days (possibly leading to corona); severe discharges need enhanced monitoring and outage requests.

3 Conclusion

Mu samu bayarwa game da fadada da kuma diagnosis of GIS current transformers. Current transformers suna da transformer - type devices based on electromagnetic principles and are commonly used in power systems. Mastering their maintenance and diagnosis methods is crucial for maintaining the normal operation of equipment and ensuring the smooth progress of power work!